Improvement in catheters



A. SHILAND.

' Catheter.

No. 217ml. Patented July 22,1879

6064709615169: fizz/16 20 10) N4 PETERS. PNOTO-LITHOGRAFHER, WASHINGTON,D c.

UNITED STATES PATENT OFFICE.

ALEXANDER SHILAND, OF WEST TROY, NEW YORK.

IMPROVEM ENT IN CATHETERS.

Specification forming part of Letters Patent No. 2] 7,711, dated July22, 1879; application filed March 26, 1879.

To all whom it may concern:

Be it known that I, ALEXANDER SHILAND, of West Troy, in the county ofAlbany and State of New York, have invented a new and useful Improvementin Catheters, w hich improvement is fully set forth in the followingspecification and accompanying drawings, in which- Figure 1 is aperspective View; Fig. 2, a longitudinal section.

Letters a and 1) indicate the conical or duckbill shaped branches,forming the terminal part of the catheter.

My invention may be denominated the duclcbill or open-mouthcatheter, andis composed of soft elastic rubber, or similar material, and terminateswith branches formed by a V-shaped section of the tube forming thecatheter. A diagonal section from each side to the center of the tubeforms the duckbill branches, and gives an opening corresponding to thechannel or inner caliber of the catheter. The elastic branches arecompressed to a wedge shape or form best adapted to enter and follow thecanal of the urethra, and the elastic branches open as soon as beyondthe pressure of the walls of the urethra, and give free passage to thefluids of the bladder.

The construction and the manner of opening and closing of the branchesforming the end of this catheter differ from allothers. The hollow ofthe tube is continuous with the open mouth, making the channel full sizethroughout.

The duck-bill branches at and b are closed by compression whenintroduced, and this conical or wedge shape facilitates the passage ofthe catheter, and when past the urethra the branches expand, forming theopen mouth. Any number of branches, oval or pointed, may be made, asdesired.

In the usual form of catheter the channel is closed at the end which isintroduced into the urethra, and small perforations which are madepermit the fluids to pass, while the end is solid, and admits of nocompression or expansion.

I claim In a soft elastic catheter, the combination of the elasticbranches forming the duck-bill or open-mouth catheter, substantially asset forth.

ALEXANDER SHILAN D.

NVitnesses R. P. TUNNARD, ANDREW VAN BUREN.

